To quantify the dose-related effects of various doses and types of selective adrenergic agonist oral decongestants on systolic and diastolic blood pressure.

1. To determine the effects of adrenergic agonist oral decongestants on variability of blood pressure.
2. To determine the effects of adrenergic agonist oral decongestants on pulse pressure.
3. To quantify the dose-related effects of adrenergic agonist oral decongestants on heart rate.
4. To quantify the effects of different doses of adrenergic agonist oral decongestants on withdrawals due to adverse events.